That can happen in any monolithic kernel OS. So basically you have two choices: a) Microkernel OS like Redox (still alpha) b) Hypervisor OS like Qubes.
Depends on what your threat model is. Sure a fully locked down mobile OS is more secure, but I also care about freedom and privacy. It's not all black and white.
Is it good?
I have had this idea in my mind of building a privacy-first, open source dating app built on "privacy by design" principles. Still didn't get to it tho.
Tried it, doesn't work. Too many bugs. I can't input a location and it fails to auto-detect so I am just living in cyberspace apparently.
Depends on your security and feature requirements. I found that Mega works well for music streaming on mobile, and the E2EE is reasonably trustworthy for that use case.
I think it never got much adoption because nobody knows how to pronounce it. Has been around for many years but I've never seen it in action.
Seems that his critique was absolutely justified.
Why on earth would you brush your teeth in the shower??
The only real solution is to use E2EE, which there are plenty of options for with XMPP.
Also check your RAM for errors maybe.